/**
 * Copyright 2009 cestum.org
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.cestum.cave.presenter.wave {
import com.hurlant.math.BigInteger;

import flash.utils.ByteArray;

import org.waveprotocol.wave.model.id.WaveletName;

/**
 * Factory for hashed versions.
 *
 *
 */
public interface HashedVersionFactory {
  function createVersionZero(waveletName:WaveletName):HashedVersion ;
  function createUsingDelta(appliedDeltaBytes:ByteArray, hashedVersionAppliedAt:HashedVersion,
      operationsApplied:int):HashedVersion ;
  function create(version:BigInteger, historyHash:ByteArray):HashedVersion ;
}
}